689769401 has 8 divisors (see below), whose sum is σ = 709357824. Its totient is φ = 670424560.

The previous prime is 689769391. The next prime is 689769403. The reversal of 689769401 is 104967986.

689769401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 689769401 - 2⁶ = 689769337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 689769401.

It is not an unprimeable number, because it can be changed into a prime (689769403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55145 + ... + 66486.

It is an arithmetic number, because the mean of its divisors is an integer number (88669728).

Almost surely, 2^689769401 is an apocalyptic number.

It is an amenable number.

689769401 is a deficient number, since it is larger than the sum of its proper divisors (19588423).

689769401 is a wasteful number, since it uses less digits than its factorization.

689769401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121791.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 689769401 is about 26263.4613293831. The cubic root of 689769401 is about 883.5571416122.

The spelling of 689769401 in words is "six hundred eighty-nine million, seven hundred sixty-nine thousand, four hundred one".